What is cost of quality?

Cost of Quality includes:

• Includes all costs incurred in the pursuit of quality or perform quality related work.

• It is more than 50% of the total project cost

There are three types of cost
Prevention cost: It is  incurred to prevent defects from occurring.
Appraisal cost: It is  incurred for reviewing and testing the work product.
Failure cost:It is the cost  incurred in correcting the defects found during appraisals or reported by the customer.

How can achieve high levels of software quality?

High levels of quality are possible by following methods

• Enterprise-wide quality programs
• Quality awareness and training methods
• Quality standards and guidelines
• Quality analysis methods
• Quality measurement methods
• Defect prevention methods
• Testing methods
• User-satisfaction methods
• Post release quality control